CVE-2023-6961: The WP Meta SEO plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘Referer’ header in all versions up to, and including, 4.5.12 due to insufficient input sanitization and outpu

high Affects wp-meta-seo (WordPress plugin). Feed 2026.10.29.1, updated 2026-10-28; published 2024-05-02; advisory modified 2026-06-17.

The WP Meta SEO plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘Referer’ header in all versions up to, and including, 4.5.12 due to insufficient input sanitization and outpu

Package: wp-meta-seo (WordPress plugin) WordPress
Affected versions: <4.5.13
Fixed in: 4.5.13
Severity: high CVSS 7.2
Exploitation: not on CISA KEV · EPSS 0% (38.6th percentile)
Published: 2024-05-02
Source: nvd

References

CWE-79

NVD record wp-meta-seo (WordPress plugin) advisories

Am I affected?

Find out in one command. phpwarden checks your WordPress install against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# one-time install
pip install phpwarden

# then
phpwarden wordpress /var/www/html

Or keep it checked automatically with the GitHub Action or a nightly cron; see WordPress docs.

Install docs How findings are ranked

Related advisories

CVE-2023-1381 high The WP Meta SEO WordPress plugin before 4.5.5 does not validate image file paths before at same package: wp-meta-seo (WordPress plugin)
CVE-2023-0875 high The WP Meta SEO WordPress plugin before 4.5.3 does not properly sanitize and escape inputs same package: wp-meta-seo (WordPress plugin)
CVE-2023-0876 medium The WP Meta SEO WordPress plugin before 4.5.3 does not authorize several ajax actions, all same package: wp-meta-seo (WordPress plugin)
CVE-2022-1093 medium The WP Meta SEO WordPress plugin before 4.4.7 does not sanitise or escape the breadcrumb s same package: wp-meta-seo (WordPress plugin)
CVE-2023-1026 medium The WP Meta SEO plugin for WordPress is vulnerable to unauthorized access of data due to a same package: wp-meta-seo (WordPress plugin)
CVE-2023-1022 medium The WP Meta SEO plugin for WordPress is vulnerable to unauthorized options update due to a same package: wp-meta-seo (WordPress plugin)